{"id":"CVE-2026-81508","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-81508","generatedAt":"2026-10-28T06:35:00.815Z","title":"A paired BR/EDR audio source within radio range can send a malformed A2DP media packet to a build with BlueDroid Classic Bluetooth and A2DP sink support enabled, causing an out-of-bounds read into adjacent heap memory and limited disclosure of heap…","description":"ESF-IDF is the Espressif Internet of Things (IOT) Development Framework. In 5.5.5, 6.0.1, and 6.1, the BlueDroid A2DP sink function btc_a2dp_sink_handle_inc_media() reads a timestamp field from the received media buffer before validating that the packet layout contains the field. A paired BR/EDR audio source within radio range can send a malformed A2DP media packet to a build with BlueDroid Classic Bluetooth and A2DP sink support enabled, causing an out-of-bounds read into adjacent heap memory and limited disclosure of heap contents. Arbitrary memory disclosure and code execution are not established.","published":"2026-09-24T18:18:58.000Z","lastModified":"2026-09-25T13:17:26.000Z","status":"Deferred","sourceIdentifier":"security-advisories@github.com","cvss":{"version":"3.1","score":4.3,"severity":"MEDIUM","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"},"cwe":["CWE-125"],"affected":[],"epss":{"score":0.00213,"percentile":0.11507,"date":"2026-10-27","history":[{"date":"2026-09-25","score":0.00213,"percentile":0.10329}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.21%). Track it; it rarely justifies an emergency change on its own."},"changes":[{"kind":"new","label":"New CVE","at":"2026-09-24T18:18:58.000Z","detail":{"score":"4.3","severity":"MEDIUM","publishedAt":"2026-09-24T18:18:57.503Z"},"summary":"New CVE, medium severity (CVSS 4.3)."}],"references":[{"url":"https://github.com/espressif/esp-idf/commit/0d118139ff8b7aa87b656c2f4a6421ecaa1f5939","source":"security-advisories@github.com"},{"url":"https://github.com/espressif/esp-idf/commit/6cb20db4dfeee81314d0c55acb82f3f0e7679abe","source":"security-advisories@github.com"},{"url":"https://github.com/espressif/esp-idf/commit/85d56bcd266117e0fe6a6b75511c8e122fda29ad","source":"security-advisories@github.com"},{"url":"https://github.com/espressif/esp-idf/commit/ca55d63de82e41e2c672bfd2b707fc80911f30ce","source":"security-advisories@github.com"},{"url":"https://github.com/espressif/esp-idf/security/advisories/GHSA-xcpr-5mqp-9qvv","source":"security-advisories@github.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-81508","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}